Comment 9 for bug 1770093

@adamsmith I simplified your patch down to a 1-liner, can you verify it still fixes it for you? I have test builds in case it helps here:
https://launchpad.net/~ddstreet/+archive/ubuntu/lp1770093

@waveform since you're the pi man, do you have an opinion on this? For quick reference, this is the patch to the 'fstab.d/basic' file:

@@ -86,7 +86,7 @@
      fi
     fi
     # base-passwd defines gid 46 as group plugdev
- if [ "$method" != efi ]; then
+ if [ "$method" != efi -a "$mountpoint" != "/boot/firmware" ]; then
      options="$options,umask=007,gid=46"
     fi
     echo "$path" "$mountpoint" vfat $options 0 1